Interesting to see so many people are still using an iPhone 4s. I recently lost my 4s on a night out, but until that happened, I had no desire to upgrade, as it did everything I needed.

I suspect there's a lot of people like me who don't use their phones for 3D gaming, or other intensive tasks, so just have no need for a faster phone.

The only reason I've now upgraded to a 5s is because I couldn't buy a new 4s with more than 8 GB storage. Can't see myself upgrading from the 5s any time soon.